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红树植物海漆中一个二萜化合物绝对构型的确定

刘真, 姜薇, 邓志威, 林文翰*   

  1. 1. 北京大学医学部 天然药物及仿生药物国家重点实验室, 北京 100191
    2. 北京师范大学 分析测试中心, 北京 100072
  • 收稿日期:2010-05-25 修回日期:2010-08-10 出版日期:2010-09-20 发布日期:2010-09-20
  • 通讯作者: 林文翰*

Assignment of the absolute stereochemistry of an unusual diterpenoid from the mangrove plant Excoecaria agallocha L.

Zhen Liu, Wei Jiang, Zhi-Wei Deng, Wen-Han Lin*   

  1. 1. State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China
    2. Analytical and Testing Center, Beijing Normal University, Beijing 100072, China
  • Received:2010-05-25 Revised:2010-08-10 Online:2010-09-20 Published:2010-09-20
  • Contact: Wen-Han Lin*

摘要: 采用多种色谱学方法和波谱学技术, 从红树植物海漆Excoecaria agallocha L.中分离得到12个化合物, 分别鉴定为excoagallochaol A (1), epi-β-amyrin (2), epitaraxerol (3), epi-α-amyrin (4), epilupeol (5), betulin (6), betulinic acid (7), lupenone (8), betulone (9), betulonic acid (10), (9Z,12Z,15Z)-2,3-dihydroxypropyl octadecatrienoate (11), (9Z,12Z)-2,3-dihydroxypropyl octadecadienoate (12), 并应用改良Mosher法确定了二萜化合物 1 的绝对构型。化合物 4, 8, 10-12为首次从大戟科海漆属中分得。

关键词: 海漆, 红树植物, 化学成分

Abstract:

An unusual diterpenoid excoagallochaol A (1), together with epi-β-amyrin (2), epitaraxerol (3), epi-α-amyrin (4), epilupeol (5), betulin (6), betulinic acid (7), lupenone (8), betulone (9), betulonic acid (10), (9Z,12Z,15Z)-2,3-dihydroxypropyl octadecatrienoate (11), and (9Z,12Z)-2,3-dihydroxypropyl octadecadienoate (12) were isolated from the stems of Excoecaria agallocha L. Their structures were elucidated by spectroscopic analyses, and the absolute stereochemistry of 1 was assigned using Mosher method. Compounds 4, 8, 10-12 were isolated from the genus Excoecaria for the first time.

Key words: Excoecaria agallocha, Mangrove plant, Chemical constituents

中图分类号: 

Supporting: Foundation item: National Key Innovation Project (Grant No. 2009ZX-09501-014, DYXM-115-02-2-09).
*Corresponding author. Tel.: 86-10-82806188; fax: 86-10-82802724